PLOTHEIA. By M. Gaede. 
397 
brown with a lilac reflection, with white spots at the middle of the costal margin and at the apex. An oblique 
interior bar of brown and black scales from the costal margin to vein 1. Black scales in the centre of the cell 
and at the cross-vein. A black streak at vein 3. Exterior line double, its course similar to that of celtis, with 
black scales at vein 1. Submarginal line dark, a white spot behind it at vein 2. Hindwing brownish white. The 
$ hindwing shows a black hair-pencil at the middle of the inner margin. 26 mm. Celebes, New Guinea. 
S. acervata Hulst. Smaller than circulella (37 b), the interior line less oblique, the median area reddish acervalu. 
brown, the rest of the forewing lead-coloured. The interior row of scales is slightly excurved in the cell, more 
so in the submedian fold, inward above the inner margin, broadest in the cell, white scales behind it in the cell, 
a few black scales at the cross-vein. Exterior line double, the inner branch brown, the outer one white, excurved 
as far as vein 3, then inward to vein 2, then vertical, with erect scales at vein 1. A whitish spot near the apex. 
Submarginal line fine, brownish, undulate. Hindwing dingy white. 16—18 mm. 2 $$ from Tenimber. 
S. molybdea Hmps. (37 b). Forewing reddish ochreous, dark violet at the base before the interior molybdea. 
line and in the marginal area. Interior line black, excurved as far as vein 1. A small black scale-spot at the 
cross-vein. Exterior line double, excurved below the costal margin, then inward. Submarginal line red-brown, 
indistinct. Hindwing brownish white. — discocellularis Strd. Forewing with a faded black spot in the centre discocellu- 
of the cell and at the cross-vein. — singaporensis Strd. On the other hand, a white spot may be at the middle 
of the costal margin and near the apex, a white ring at the cross-vein, and an oblique black streak behind the ' ngaporen^ 
upper cell-angle. — 18—20 mm. Singapore. 
S. docilis Btlr. (= canofusa Hmps.) (Vol. 15, pi. 17 h) is widely distributed in Africa, for which reason docilis. 
it was dealt with in Vol. 15, p. 184. In the Indian Region there are two forms: 1. The typical form. Forewing 
with indistinct black spots at the base, before and behind the interior line, and fine black streaks in the marginal 
area. — 2. taprobanis Strd. The forewing with faded black spots below and behind the cell-end. From Karachi taprobanis. 
and Ceylon. 
, S. oranga Swh. Forewing pale pink, densely dusted with black, except a narrow stripe below the costal oranga. 
margin and a broader one from the apex to the middle of the inner margin. Ring-macula and reniform macula 
represented by white spots, the former encircled with black and pink. A double strongly bent line, filled with 
white, from below the base of the cell to the middle of the wing above the inner margin. A double ring-line above 
it. All these markings indistinct. Pale pink at the inner margin behind the middle. Submarginal line black, 
edged with pink on both sides. Hindwing dark grey, browner at the margin. $ 25 mm. Borneo. 
S. euryochra Trnr. Forewing brownish white, broadly dark brown at the costal margin, but not quite e.uryochra. 
to the apex. A broader blackish stripe at the inner margin and as far as the middle of the distal margin up¬ 
ward. Hindwing whitish, somewhat grey at the margin. $ 20 mm. Queensland. 
23. Genus: Plotheia Wkr. 
Palpi long and obliquely rising, the second joint hairy behind. Forelegs long-haired, abdomen with 
small dorsal tufts. Neuration normal. Vein 8 of hindwing branching off from the centre of the cell. The genus 
contains but one most variable species. 
P. descrescens Wkr. (37 c, d, e, h). In addition to this name there are 6 synonyms and 30 forms which decrescens. 
are par t ly denominated. The nomenclatural type is olive grey or also pale red-brown on the forewing. A fine 
pale streak below the base of the cell. Interior line black, double, straight, somewhat inward. Median line 
indistinct, excurved. Reniform macula large, edged with black, with black scales in the middle. Exterior line 
black, double, sharply bent round behind the centre of the cell, inward as far as the submedian fold. Sub¬ 
marginal line finely white, notched. Hindwing dark brown. Now the forms: 1. signata Wkr. (37 f). Forewing signata. 
blackish at the base, apex and anal angle. — 2. guttulosa Wkr. (37 e). Interior, exterior and submarginal lines gutiulosa. 
composed of black spots. — 3. spurcata Wkr. (37 e). Ground-colour somewhat lighter. Forewing with a black spurcata. 
median spot from the costal margin to the lower edge of the cell. — 4. (37 h). Forewing lead-coloured, except 
at the base, apex and anal angle. — 5. lativitta Mr. is similar, but the lead-coloured parts are dark brown, the lativitta. 
3 angles ash-grey. — 6. imprimens Wkr. Forewing black above the inner margin, with white spots at the middle imprimens. 
of the inner margin and at the anal angle. — 7. Forewing with a purely white apical spot. — 8. like 7, besides 
the inner margin is broadly white as far as the exterior line. — 9. like 8, but besides with rows of black spots 
in the marginal area. — 10. lichenoides Wkr. (37 e). Dark brown, interior and exterior lines finely yellowish, lichenoides. 
— 11. velata Wkr. (37 f). All the wings dark chestnut-brown, except lighter pale pinkish brown spots at the velaia. 
base, the middle of the inner margin, and at the costal margin. — 12. cinerascens Wkr. (37 f). Forewing light cinerascens. 
yellowish grey, antemedian and postmedian rows of fine, but deep black dots, a reddish yellow central spot 
in the middle of the wing. — 13. frontalis Wkr. (37 b), almost exactly like 12, except that dark brown demi- frontalis. 
bands extend from the costa behind the base and before the margin. — 14. concisa Wkr. (37 f). Similar to the typi- concisa. 
cal form. Interior line whitish, edged dark outside. — 15. The dark edge of the white line is absent . — 16. Fore¬ 
wing red-brown above the inner margin. — 17. Like lichenoides , but the lines are white. Veins 7, 6, 3 and 1 
white. — 18. Like 17, but the base, inner margin and anal angle not dark. — 19. Like lichenoides , but a brownish 
ochreous band before the interior line. — 20. The whole median area of the forewing brownish white. — 21. griseo- griseovirens. 
